A research associate of the Academy, keeper of its Bryophyte herbarium and associated with the Philadelphia Botanical Club, who upon his return from a collecting trip to Alaska, July 19, 1945, prepared this map for an article. It shows the areas botanized in Yakutat, Alaska. Scale 1″:3000′.

Gift, found with Franeis W. Pennell's papers from the Botany dept., 1958.